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Winterberry Wildlife

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Category Archives: Contact

Estimating Energizer Ultimate Lithium (LiFeS2) Battery Capacity

Winterberry Wildlife Posted on December 26, 2022 by Bob ZakJuly 4, 2024

I give background and two data-driven methods to estimate the remaining capacity of LiFeS2 (e.g. Energizer Ultimate Lithium) batteries.

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Posted in Camera Trapping Technology, Contact, Deep Tech | Tagged battery tester, Energizer Ultimate Lithium, is battery dead?, lithium metal, MBT-1, remaining capacity, state of charge, trail camera | 8 Replies

Deep Tech: Trail Camera Detection Zones

Winterberry Wildlife Posted on August 1, 2022 by Bob ZakAugust 10, 2022
swimming bear

Knowing the detection zone pattern can help produce more “true triggers” and fewer “false triggers.” In an earlier post Deep Tech: Trail Camera PIR Sensors I covered some of the details of PIR sensors. Based on feedback from subscribers, though, I realized that I had missed some subtle aspects of the Fresnel lens optics and detection zones for PIR sensors. In this post, I look more closely at trail camera detection zones, and how they work. I also give a straightforward way to find the detection zones in most cameras. I use this method to measure the detection zones for three camera models.

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Posted in Camera Trapping Technology, Contact, Deep Tech | Tagged Browning, Bushnell, camera trapping, detection zone, Exodus, missing triggers, PIR sensors, trail camera | 11 Replies

Raccoon Scent Marking and Comparison with Bobcat

Winterberry Wildlife Posted on February 22, 2020 by Janet PesaturoFebruary 22, 2020
raccoons often scent mark at porcupine cave dens

Raccoons (Procyon lotor) are hardly ever the intended target species of my camera trapping endeavors because, as adaptable and abundant creatures, they show up almost anywhere, anyway. So, what I’ve learned about raccoon scent marking has been mostly (okay entirely) … Continue reading →

Posted in Blog, Contact, Raccoons | Tagged anal rubbing, bobcat, raccoon, scent marking | 12 Replies
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